Multi-wavelength Q-switched random fiber laser based on stimulated Brillouin scattering and multimodal interference

Hai-Yue Pang; Zhao-Yun Li; Jia-Teng Zheng; Zhi-Yong Tao; Ya-Xian Fan

doi:10.1117/12.2603119

31 August 2021 Multi-wavelength Q-switched random fiber laser based on stimulated Brillouin scattering and multimodal interference

Hai-Yue Pang, Zhao-Yun Li, Jia-Teng Zheng, Zhi-Yong Tao, Ya-Xian Fan

Author Affiliations +

Proceedings Volume 11907, Sixteenth National Conference on Laser Technology and Optoelectronics; 119072B (2021) https://doi.org/10.1117/12.2603119
Event: Sixteenth National Conference on Laser Technology and Optoelectronics, 2021, Shanghai, China

Abstract

We demonstrate a multi-wavelength Q-switched random fiber laser with the erbium-doped fiber as the gain medium and the Rayleigh scattering as the randomly distributed feedback in a 6 km long single-mode fiber. Q-switched pulses and sub-pulses with different repetition frequencies were generated with the pump power as 182 mW by combining the random cavity resonances and the Q-value modulation effect induced by the stimulated Brillouin scattering and nonlinear multimode interference in the graded-index multimode fiber. The pulse repetition rate increased continuously from 79 kHz to 113 kHz, and the corresponding pulse width exponentially decreased with the continuously increasing pump power, and a shortest pulse width of 1.85 μs was obtained. At the same time, a multi-wavelength spectrum with the equally spaced interval and an optical signal-to-noise ratio of ~31 dB was achieved. This laser has the unique properties different from the conventional resonant cavity lasers, which makes it a very promising light source in optical communication, imaging, and sensing applications.

Citation Download Citation

Hai-Yue Pang, Zhao-Yun Li, Jia-Teng Zheng, Zhi-Yong Tao, and Ya-Xian Fan "Multi-wavelength Q-switched random fiber laser based on stimulated Brillouin scattering and multimodal interference", Proc. SPIE 11907, Sixteenth National Conference on Laser Technology and Optoelectronics, 119072B (31 August 2021); https://doi.org/10.1117/12.2603119

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available